Understanding Multiplication Techniques

Understanding Multiplication Techniques

Assessment

Interactive Video

Mathematics

6th - 8th Grade

Hard

Created by

Thomas White

FREE Resource

This video tutorial explains how to multiply three-digit numbers by 111 using mental math. It provides two examples: 354 x 111 and 684 x 111, detailing each step of the process. The tutorial concludes with a recap and offers practice problems for viewers to try on their own.

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15 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the first step in multiplying a three-digit number by 111?

Write the tens digit.

Write the ones digit.

Write the sum of all digits.

Write the hundreds digit.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the example of 354 x 111, what is the sum of the tens and ones digits?

10

11

9

7

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

When adding in groups of three, what do you do if there are no more groups left?

Add the hundreds digit.

Add the two leftmost digits.

Add the ones digit again.

Add the tens digit.

4.

MULTIPLE SELECT QUESTION

30 sec • 1 pt

What is the result of 354 x 111?

39,294

39,204

39,294

39,204

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the purpose of carrying over a digit in this multiplication method?

To simplify the calculation.

To ensure correct addition in the next step.

To avoid errors in subtraction.

To adjust the hundreds digit.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the recap, what is emphasized as the final step after running out of groups of three?

Write the ones digit.

Write the sum of all digits.

Write the carried digit.

Write the leftmost digit.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

In the second example, what is the sum of the ones and tens digits of 684?

14

12

16

10

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